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DomainTools VS SubAnalyzer

Compare DomainTools VS SubAnalyzer and see what are their differences

DomainTools

Domain name research, including comprehensive Whois Lookup, Reverse Whois Lookup and Whois History.

Rating
0 reviews
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Alternatives Is it good?
SubAnalyzer

Free subdomain finder with port scans and takeover checks

Rating
0 reviews
Pricing
Freemium Free trial $15 / Monthly
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Alternatives Is it good?
RealUptime.io
Uptime monitoring, status pages, and error tracking that show every region's reading, not one green dot. Flat pricing, no per-subscriber fees, real free tier. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, DomainTools seems to be more popular. It has been mentioned 8 times since March 2021.

social mentions
8 vs 0
Domain Names popularity
100% vs 0%
alternatives listed
182 vs 3

Base details

Website, pricing, platforms and company facts side by side.

DomainTools
SubAnalyzer
Website domaintools.com subanalyzer.com
Pricing —
Freemium Free trial $15 / Monthly Official pricing
Platforms —
Web
Company — Startup from Norway · 1 - 9 employees · 2025
Listed in
Domains Domain Names Monitoring Tools Domain Name Tools +1
Cyber Security OSINT Tools Network Security

About DomainTools and SubAnalyzer

In their own words, as submitted to SaaSHub.

DomainTools
SubAnalyzer

No description of DomainTools yet.

SubAnalyzer.com is a cybersecurity platform that discovers and monitors external attack surface, including subdomains, exposed services, misconfigurations and takeover risks.

Read more about SubAnalyzer

Features and specs

What each product offers, as listed by its team.

DomainTools 5 features
SubAnalyzer 5 features
  • Comprehensive WHOIS Data
    DomainTools provides an extensive WHOIS database, offering detailed information about domain ownership, registration dates, and contact details.
  • Historical Data
    The platform offers historical WHOIS records and domain ownership data, which can be valuable for investigative purposes.
  • Threat Intelligence and Analysis Tools
    DomainTools includes features for threat hunting, risk assessment, and malware analysis, which aid cybersecurity professionals in identifying and mitigating threats.
  • Reverse Whois and DNS Lookup
    Users can perform reverse WHOIS lookups and DNS lookups, enabling them to find all domains associated with a specific registrant and analyze DNS records.
  • API Access
    DomainTools provides API access, which allows integration with other systems and automation of domain and cybersecurity workflows.

Possible disadvantages

  • Cost
    DomainTools is a premium service, and its advanced features can be expensive, making it less accessible for small businesses or individual users.
  • Complexity
    Due to the wide range of features and data provided, the platform can be complex to navigate and may require a learning curve for new users.
  • Privacy Concerns
    The extensive data collection and historical records might raise privacy concerns among individuals and businesses wary of their domain information being easily accessible.
  • Data Overload
    The sheer volume of data and features can be overwhelming, potentially complicating the process of finding specific information quickly.
  • Dependence on Accuracy
    The effectiveness of DomainTools is highly dependent on the accuracy and currency of its data, which may not always be guaranteed.
  • Subdomain Finder
    Certificate transparency logs, passive DNS and website links, plus a deep scan with wordlists, zone transfers, zone walks, TLS certificates and reverse DNS (paid plans)
  • Subdomain Takeover
    Flags subdomains pointing at an unclaimed cloud resource. Paid plans name the service, so you know how to fix it
  • Port Scanning
    Identify services running on subdomains
  • IP and Hosting Lookup
    IP addresses, network owner and cloud provider of every subdomain
  • Website Screenshots
    Screenshots and HTTP status of the web pages found. Paid plans show every screenshot, labeled by type such as sign-in pages

Analysis

An editorial look at what each product does well and who it suits.

DomainTools
SubAnalyzer

Overall verdict

  • DomainTools is generally considered a good service for those needing detailed domain information and analytics. Its extensive database and powerful tools make it a reliable choice for cybersecurity and domain research needs.

Why this product is good

  • DomainTools is known for its comprehensive domain data services including WHOIS lookup, domain history, DNS records, and cyber threat intelligence. It is trusted by cybersecurity professionals, businesses, and researchers for monitoring domain activities, conducting investigations, and ensuring brand protection.

Recommended for

    DomainTools is best suited for cybersecurity professionals, digital marketers, brand managers, and IT teams who require in-depth domain data and analysis for activities such as threat detection, brand protection, and security investigations.

No analysis of SubAnalyzer yet.

Videos

Walkthroughs and reviews on video.

DomainTools 3 videos + Add
SubAnalyzer 0 videos + Add

About DomainTools

More videos

  • - Iris, DomainTools - Paul's Security Weekly #598
  • - DomainTools Whois Tutorial

No SubAnalyzer videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
DomainTools
SubAnalyzer
100% 100%
Domain Names
0% 0%
0% 0%
Network Security
100% 100%
100% 100%
Domains
0% 0%
0% 0%
Cyber Security
100% 100%

Questions & Answers

As answered by people managing DomainTools and SubAnalyzer.

What makes your product unique?

SubAnalyzer's answer:

Most subdomain finders stop at a list of names. SubAnalyzer finds a domain’s subdomains, then checks every one of them in the same scan: IP addresses, network owner and cloud provider, 58 common ports, screenshots of the web pages, subdomain takeover risk, who can send email as the domain, and other domains the same organization owns. Names come from our own index of certificate transparency logs, plus passive DNS, website links and live DNS lookups. Names that only a wildcard DNS record answers for are left out unless something shows they are real, so the list holds hosts that exist. An AI summary puts urgent findings first: code decides what gets flagged, and the model only words it.

Why should a person choose your product over its competitors?

SubAnalyzer's answer:

It runs in the browser with nothing to install, and two domains a day are free without an account, so you get results in minutes instead of setting up command-line tools. One scan replaces several tools: subdomain discovery, port scanning, screenshots, takeover checks and email security, in one table you can search, filter and share. Paid plans cost $15 a month or $150 a year. They re-scan up to 10 domains daily, weekly or monthly and email you when new subdomains, services or takeover risks appear, and every change is kept in the history. Scans come from published addresses, so anyone scanned can see who it was and contact us.

How would you describe the primary audience of your product?

SubAnalyzer's answer:

People responsible for what an organization exposes on the internet: security and IT teams at companies and public bodies who need to know every subdomain they run and hear when something changes, and consultants who check this for clients. It’s also built for pentesters, bug bounty hunters and OSINT researchers doing reconnaissance, and for people getting started in cybersecurity, since the free scans need no account.

What's the story behind your product?

SubAnalyzer's answer:

SubAnalyzer was built to make attack surface management accessible to everyone, from security teams to people just getting started in cybersecurity: no setup, just results you can act on. SubAnalyzer 2.0 was rebuilt from the ground up in 2026 to check every subdomain it finds, not just list it: open ports, screenshots, takeover risk and email security. It has its own index of certificate transparency logs, and monitoring emails you when something changes. So far it has scanned more than 42,000 domains and found over 5.6 million subdomains.

Which are the primary technologies used for building your product?

SubAnalyzer's answer:

Our stack includes Next.js, React and TypeScript for the web app, with Django (Python) and PostgreSQL powering the API. Our Python scanners use massdns, masscan and Playwright, while our custom certificate transparency index is built in Go. Infrastructure runs on Microsoft Azure Container Apps, AWS Lambda and Cloudflare, with Docker for containerization. We use Anthropic’s Claude to describe screenshots, identify related domains and draft scan summaries, and Stripe to handle billing.

Who are some of the biggest customers of your product?

SubAnalyzer's answer:

Security teams, bug bounty hunters and business owners.

User comments

Share your experience with using DomainTools and SubAnalyzer. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

DomainTools 8 mentions
SubAnalyzer 0 mentions
  • Domain Forwarding History
    And domaintools.com also gives historical nameserver data. Source: over 3 years ago
  • Suggestion if you see one of those scam sites...
    A lot of people have been reporting the various Arcade1up scam sites here and on Facebook, the best thing you can do if you see these websites is do a whois on them utilizing something like https://domaintools.com/. Source: almost 5 years ago
  • Is Aristo Capital Group Limited a scam?
    So here’s the useful info for aristogloballimited.com I came up with (using domaintools.com):. Source: almost 5 years ago

View more

Tracking SubAnalyzer since Oct 2026.

Alternatives to DomainTools and SubAnalyzer

When comparing DomainTools and SubAnalyzer, you can also consider the following products.

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